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InfoCrop: A dynamic simulation model for the assessment of crop yields, losses due to pests, and environmental impact of agro-ecosystems in tropical environments. II. Performance of the model

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Title InfoCrop: A dynamic simulation model for the assessment of crop yields, losses due to pests, and environmental impact of agro-ecosystems in tropical environments. II. Performance of the model
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Creator P.K. Aggarwal, B. Banerjee, M.G. Daryaei, A. Bhatia, A. Bala, S. Rani, S. Chander, H. Pathak, N. Kalra
 
Subject Infocrop; Simulation; Crop model; Validation; Climate change; GHG emissions; Soil carbon; Pest modelling
 
Description Not Available
InfoCrop, a generic crop model, simulates the effects of weather, soils, agronomic management
(planting, nitrogen, residues and irrigation) and major pests on crop growth, yield, soil
carbon, nitrogen and water, and greenhouse gas emissions. This paper presents results of its
evaluation in terms of its validation for rice and wheat crops in contrasting agro-environments
of tropics, sensitivity to the key inputs, and also illustrates two typical applications of the
model. Eleven diverse field experiments, having treatments of location, seasons, varieties,
nitrogen management, organic matter, irrigation, and multiple pest incidences were used for
validation. Grain yields in these experiments varied from 2.8 to 7.2 ton ha 1 in rice and from
3.6 to 5.5 ton ha 1 in wheat. The results indicated that the model was generally able to explain
the differences in biomass, grain yield, emissions of carbon dioxide, methane and nitrous
oxides, and long-term trends in soil organic carbon, in diverse agro-environments. The losses
in dry matter and grain yield due to different pests and their populations were also explainedsatisfactorily. There were some discrepancies in the simulated emission of these gases during
first few days after sowing/transplanting possibly because of the absence of tillage effects in
the model. The sensitivity of the model to change in ambient temperature, crop duration
and pest incidence was similar to the available field knowledge. The application of the model
to quantify multiple pests damage through iso-loss curves is demonstrated. Another application
illustrated is the use of InfoCrop for analyzing the trade-offs between increasing crop
production, agronomic management strategies, and their global warming potential.
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Date 2024-05-13T10:37:23Z
2024-05-13T10:37:23Z
2006-01-01
 
Type Research Paper
 
Identifier Aggarwal, P.K., Banerjee, B., Daryaei, M.G., Bhatia, A., Bala, A., Rani, S., Chander, S, Pathak, H. and Kalra, N. 2006. Infocrop: A dynamic simulation model for the assessment of crop yields, losses due to pests, and environment impact of agro-ecosystem in tropical environments. II. Model performance. Agricultural Systems 89(1):47-67.
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http://krishi.icar.gov.in/jspui/handle/123456789/82801
 
Language English
 
Relation Not Available;
 
Publisher Elsevier